NH3 has 1 Nitrogen atom and 3 hydrogen atoms.
7 valance electrons and a atomic number of 9
<span>because p6 will be the group 8. You have to count the 2 electrons from the "s" block that are Group I and Group II
Group I s1
Group II s2
Group III s2 p1
Group IV s2 p2
Group V s2 p3
Group VI s2 p4
Group VII s2 p5
Group VIII s2 p6</span>
Answer: C
Explanation:
Indicators are organic weak acids or bases with complicated structures.
